City vs city
Harrisburg vs Plum, PA
Harrisburg currently scores 2 points higher overall than Plum, with the largest gap in tornado.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality is a current EPA AirNow signal; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Harrisburg: 50/100 · Plum: 48/100
Harrisburg is 2 points higher.
Flood
Harrisburg: 98/100 · Plum: 85/100
Harrisburg is 13 points higher.
Harrisburg: FEMA NFHL flood zones: 11 features intersect this tile.
Plum: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Harrisburg: 20/100 · Plum: 18/100
Harrisburg is 2 points higher.
Harrisburg: Wind exposure derived from ingested design wind / climatology tiles.
Plum: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harrisburg: 38/100 · Plum: 29/100
Harrisburg is 9 points higher.
Harrisburg: Lightning exposure derived from ingested climatology tiles.
Plum: Lightning exposure derived from ingested climatology tiles.
Tornado
Harrisburg: 38/100 · Plum: 0/100
Harrisburg is 38 points higher.
Harrisburg: Tornado risk derived from NOAA SPC historical reports.
Plum: Tornado risk derived from NOAA SPC historical reports.
Hail
Harrisburg: 72/100 · Plum: 95/100
Plum is 23 points higher.
Harrisburg: Hail risk derived from NOAA SPC historical reports.
Plum: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harrisburg: Unavailable · Plum: Unavailable
A score difference cannot be calculated without both sources.
Harrisburg: Storm surge model is not available for this location yet.
Plum: Storm surge model is not available for this location yet.
Wildfire
Harrisburg: 43/100 · Plum: 24/100
Harrisburg is 19 points higher.
Harrisburg: Wildfire exposure derived from ingested fire potential tiles.
Plum: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Harrisburg: 40/100 · Plum: 38/100
Harrisburg is 2 points higher.
Harrisburg: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Plum: Air quality signal derived from the latest EPA AirNow combined AQI grid.